I bet you're from the USA, so this may be hard for you to understand given your context, but as someone from LATAM, let me tell you: China can try really hard to be evil - they will have a LOT of work to be worse than the US.
Why not compare the Allies with the Axis next? The US was segregated, right, so... hey, same difference! /s
[1]https://en.wikipedia.org/wiki/United_States_involvement_in_r...
A surprising number of people don't seem to know the first thing about China. Hey, it might not help that China doesn't allow a fifth of the world to learn the history of China.
But let's talk again in four years. The way things are going in America, I may agree with you guys by then :(
USA has also rescued hundreds of millions of people (including China!) from bloody conquerers, as in WW II.
(it's not like the US is innocent; we have made a huge number of terrible mistakes attempting to maintain the Pax Americana. I fully acknowledge while being fairly sure that China could and would do far, far worse than the US)
Also, China did try it only a few decades ago. Murder, starvation, horrific torture, reeducation camps, brainwashed children denouncing their parents... impressively evil. Not that Tiananmen Square or Uyghur ethnic cleansing or kidnappings of expat dissidents are so much better.
For sure this country has its own flawed history with slavery and treatment of Native Americans, but China is absolutely on its own level with Nazi Germany and Soviet Russia.